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Objective evaluation method for stereo image quality on the basis of image decomposition

A technology for stereoscopic images and image quality, which is applied in stereoscopic systems, image communication, television, etc., and can solve the problems of inaccurate depth perception of stereoscopic images and direct viewing of disparity maps.

Active Publication Date: 2013-09-04
哈尔滨昇悦生物科技有限公司
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Problems solved by technology

[0003] The current objective evaluation method of stereoscopic image quality is to directly apply the planar image quality evaluation method to evaluate the quality of stereoscopic images, or to evaluate the depth perception of stereoscopic images by evaluating the quality of disparity maps. However, the process of fusion of stereoscopic images to produce stereoscopic It is not an extension of the simple planar image quality evaluation method, and the human eye does not directly view the disparity map, and it is not very accurate to evaluate the depth perception of the stereoscopic image by the quality of the disparity map

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  • Objective evaluation method for stereo image quality on the basis of image decomposition
  • Objective evaluation method for stereo image quality on the basis of image decomposition
  • Objective evaluation method for stereo image quality on the basis of image decomposition

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Embodiment Construction

[0075] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0076] A method for objective evaluation of stereoscopic image quality based on image decomposition proposed by the present invention, its overall realization block diagram is as follows figure 1 As shown, the process is as follows:

[0077] Firstly, three-level wavelet transform is performed on the left view image of the original undistorted stereo image and the left view image of the distorted stereo image to be evaluated, and then according to the obtained wavelet coefficients of the three direction subbands corresponding to each wavelet transform Matrix, to obtain the restored image and interference image of the left viewpoint image of the distorted stereoscopic image to be evaluated; similarly, implement 3 levels for the right viewpoint image of the original undistorted stereoscopic image and the right viewpoint image of the distorted ste...

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Abstract

The invention discloses an objective evaluation method for the stereo image quality on the basis of image decomposition. The objective evaluation method for the stereo image quality on the basis of the image decomposition comprises the following steps: firstly, respectively decomposing the left viewpoint image of a distorted stereo image to be evaluated into a recovery image and an interference image; decomposing the right viewpoint image of the distorted stereo image to be evaluated into a recovery image and an interference image; respectively evaluating the recovery images of the left viewpoint image and the right viewpoint image by adopting the local phase characteristic and the local vibration amplitude characteristic; respectively evaluating the interference images of the left viewpoint image and the right viewpoint image by using a singular value vector; and obtaining the objective evaluation predicted value for the distorted stereo image quality to be evaluated. The objective evaluation method for the stereo image quality on the basis of the image decomposition has the advantages that the recovery images and the interference images obtained by decomposition can better represent the influence of an image detail and redundant information on the image quality, so that an evaluation result can better conform to the human vision system, and therefore the correlation of an objective evaluation result and subjective perception can be effectively improved.

Description

technical field [0001] The invention relates to an image quality evaluation method, in particular to an image decomposition-based objective evaluation method for stereoscopic image quality. Background technique [0002] With the rapid development of image coding technology and stereoscopic display technology, stereoscopic image technology has received more and more attention and applications, and has become a current research hotspot. Stereoscopic image technology utilizes the binocular parallax principle of the human eye. Both eyes independently receive left and right viewpoint images from the same scene, and form binocular parallax through brain fusion, so as to enjoy a stereoscopic image with a sense of depth and realism. Due to the influence of acquisition system, storage compression and transmission equipment, stereoscopic images will inevitably introduce a series of distortions. Compared with single-channel images, stereoscopic images need to ensure the image quality o...

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Application Information

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IPC IPC(8): H04N17/00H04N13/00
Inventor 邵枫胡朝正蒋刚毅郁梅李福翠彭宗举
Owner 哈尔滨昇悦生物科技有限公司
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